var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
//var usersRouter = require('./routes/users');
var User = require('./api/User');

var UserData = require('./api/UserData');
var Menu = require('./api/Menu');
var bclass = require('./api/Bclass');
var role = require('./api/Role');
var per = require('./api/Permision');
var cstu = require('./api/Cstu');
var subject = require('./api/Subject');
var task = require('./api/Task');
var upload = require('./api/Upload');

var app = express();

//允许跨域
app.all('*', function (req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'Content-Type');
  res.header('Access-Control-Allow-Methods', '*');
  res.header('Content-Type', 'application/json;charset=utf-8');//响应给客户端的信息是json数据
  next();
});

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/user', User);
app.use('/userData', UserData);
app.use('/menu', Menu);
app.use('/bclass', bclass);
app.use('/role', role);
app.use('/per', per);
app.use('/cstu', cstu);
app.use('/subject', subject);
app.use('/task', task);
app.use('/upload', upload);

//app.use('/users', usersRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
